Old paint brush handles might not seem like the most obvious thing to recycle but they can actually come in handy when you're using a table saw. If you pry off the metal that connects the brush to the handle, you're left with a versatile wooden handle that can be repurposed into a push. If you use a saw to make a couple of simple cuts, you can turn it into a push for when you're cutting on a table saw.
Sure, you could use the handle without making the simple cuts, but this isn't always best, especially when you're pushing a board fairly hard and need something with some grip.